./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:47:01,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:47:01,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:47:01,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:47:01,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:47:01,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:47:01,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:47:01,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:47:01,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:47:01,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:47:01,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:47:01,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:47:01,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:47:01,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:47:01,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:47:01,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:47:01,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:47:01,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:47:01,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:47:01,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:47:01,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:47:01,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:47:01,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:47:01,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:47:01,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:47:01,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:47:01,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:47:01,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:47:01,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:47:01,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:47:01,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:47:01,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:47:01,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:47:01,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:47:01,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:47:01,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:47:01,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:47:01,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:47:01,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:47:01,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:47:01,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:47:01,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:47:01,485 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:47:01,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:47:01,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:47:01,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:47:01,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:47:01,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:47:01,489 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:47:01,489 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:47:01,489 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:47:01,489 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:47:01,490 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:47:01,491 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:47:01,491 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:47:01,491 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:47:01,491 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:47:01,492 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:47:01,492 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:47:01,492 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:47:01,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:47:01,493 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:47:01,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:47:01,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:47:01,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:47:01,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:47:01,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:47:01,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:47:01,495 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:47:01,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:47:01,495 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:47:01,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:47:01,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:47:01,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:47:01,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:47:01,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:47:01,498 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:47:01,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:47:01,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:47:01,499 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:47:01,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:47:01,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:47:01,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:47:01,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-11-03 02:47:01,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:47:01,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:47:01,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:47:01,848 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:47:01,849 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:47:01,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-03 02:47:01,920 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/data/f47ce6056/0263033d74734a64974b91906e76e706/FLAG656348df0 [2022-11-03 02:47:02,634 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:47:02,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-03 02:47:02,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/data/f47ce6056/0263033d74734a64974b91906e76e706/FLAG656348df0 [2022-11-03 02:47:02,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/data/f47ce6056/0263033d74734a64974b91906e76e706 [2022-11-03 02:47:02,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:47:02,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:47:02,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:47:02,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:47:02,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:47:02,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:47:02" (1/1) ... [2022-11-03 02:47:02,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6385286a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:02, skipping insertion in model container [2022-11-03 02:47:02,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:47:02" (1/1) ... [2022-11-03 02:47:02,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:47:02,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:47:03,140 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 02:47:03,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-03 02:47:03,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:47:03,997 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:47:04,012 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 02:47:04,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-03 02:47:04,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:47:04,238 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:47:04,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04 WrapperNode [2022-11-03 02:47:04,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:47:04,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:47:04,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:47:04,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:47:04,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,327 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-03 02:47:04,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:47:04,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:47:04,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:47:04,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:47:04,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:47:04,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:47:04,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:47:04,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:47:04,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (1/1) ... [2022-11-03 02:47:04,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:47:04,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:04,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:47:04,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:47:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 02:47:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:47:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 02:47:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:47:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:47:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:47:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:47:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:47:04,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:47:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-03 02:47:04,502 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-03 02:47:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:47:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:47:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:47:04,504 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:47:04,916 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:47:04,918 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:47:05,227 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:47:05,291 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:47:05,291 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:47:05,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:05 BoogieIcfgContainer [2022-11-03 02:47:05,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:47:05,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:47:05,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:47:05,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:47:05,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:47:02" (1/3) ... [2022-11-03 02:47:05,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e18ff60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:05, skipping insertion in model container [2022-11-03 02:47:05,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:04" (2/3) ... [2022-11-03 02:47:05,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e18ff60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:05, skipping insertion in model container [2022-11-03 02:47:05,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:05" (3/3) ... [2022-11-03 02:47:05,304 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-11-03 02:47:05,314 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:47:05,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:47:05,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-03 02:47:05,326 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:47:05,394 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-03 02:47:05,458 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:47:05,476 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 175 transitions, 366 flow [2022-11-03 02:47:05,487 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 175 transitions, 366 flow [2022-11-03 02:47:05,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-11-03 02:47:05,634 INFO L130 PetriNetUnfolder]: 8/226 cut-off events. [2022-11-03 02:47:05,634 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-03 02:47:05,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 226 events. 8/226 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 430 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 122. Up to 4 conditions per place. [2022-11-03 02:47:05,644 INFO L118 LiptonReduction]: Number of co-enabled transitions 3536 [2022-11-03 02:48:09,989 INFO L133 LiptonReduction]: Checked pairs total: 8888 [2022-11-03 02:48:09,990 INFO L135 LiptonReduction]: Total number of compositions: 188 [2022-11-03 02:48:09,998 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 41 transitions, 98 flow [2022-11-03 02:48:10,070 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 625 states, 613 states have (on average 2.6296900489396413) internal successors, (1612), 624 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:10,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:48:10,097 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@11172492, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:48:10,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-03 02:48:10,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 625 states, 613 states have (on average 2.6296900489396413) internal successors, (1612), 624 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:10,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:48:10,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:10,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:48:10,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-03 02:48:10,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:10,115 INFO L85 PathProgramCache]: Analyzing trace with hash 20644454, now seen corresponding path program 1 times [2022-11-03 02:48:10,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:10,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831117009] [2022-11-03 02:48:10,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:10,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:10,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:10,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831117009] [2022-11-03 02:48:10,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831117009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:10,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:10,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:48:10,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309953461] [2022-11-03 02:48:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:10,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:10,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:10,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:10,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:10,672 INFO L87 Difference]: Start difference. First operand has 625 states, 613 states have (on average 2.6296900489396413) internal successors, (1612), 624 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:10,889 INFO L93 Difference]: Finished difference Result 618 states and 1568 transitions. [2022-11-03 02:48:10,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:10,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-03 02:48:10,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:10,918 INFO L225 Difference]: With dead ends: 618 [2022-11-03 02:48:10,918 INFO L226 Difference]: Without dead ends: 582 [2022-11-03 02:48:10,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:10,926 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:10,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:48:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-11-03 02:48:11,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2022-11-03 02:48:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 574 states have (on average 2.5644599303135887) internal successors, (1472), 581 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 1472 transitions. [2022-11-03 02:48:11,030 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 1472 transitions. Word has length 4 [2022-11-03 02:48:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:11,031 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 1472 transitions. [2022-11-03 02:48:11,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 1472 transitions. [2022-11-03 02:48:11,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:48:11,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:11,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:48:11,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:48:11,034 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-03 02:48:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:11,036 INFO L85 PathProgramCache]: Analyzing trace with hash 20640131, now seen corresponding path program 1 times [2022-11-03 02:48:11,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:11,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140803428] [2022-11-03 02:48:11,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:11,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:11,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:11,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140803428] [2022-11-03 02:48:11,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140803428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:11,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:11,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:48:11,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13401237] [2022-11-03 02:48:11,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:11,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:11,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:11,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:11,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:11,428 INFO L87 Difference]: Start difference. First operand 582 states and 1472 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:11,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:11,615 INFO L93 Difference]: Finished difference Result 737 states and 1847 transitions. [2022-11-03 02:48:11,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:11,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-03 02:48:11,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:11,621 INFO L225 Difference]: With dead ends: 737 [2022-11-03 02:48:11,621 INFO L226 Difference]: Without dead ends: 737 [2022-11-03 02:48:11,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:11,626 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:11,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:48:11,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-11-03 02:48:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 641. [2022-11-03 02:48:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 634 states have (on average 2.5662460567823344) internal successors, (1627), 640 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1627 transitions. [2022-11-03 02:48:11,659 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1627 transitions. Word has length 4 [2022-11-03 02:48:11,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:11,659 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1627 transitions. [2022-11-03 02:48:11,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:11,659 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1627 transitions. [2022-11-03 02:48:11,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:48:11,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:11,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:48:11,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:48:11,667 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-03 02:48:11,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:11,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1639674588, now seen corresponding path program 1 times [2022-11-03 02:48:11,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:11,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210510381] [2022-11-03 02:48:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:11,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:11,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:11,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:11,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210510381] [2022-11-03 02:48:11,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210510381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:11,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:11,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:11,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553489828] [2022-11-03 02:48:11,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:11,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:48:11,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:11,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:48:11,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:48:11,967 INFO L87 Difference]: Start difference. First operand 641 states and 1627 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:12,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:12,272 INFO L93 Difference]: Finished difference Result 796 states and 1970 transitions. [2022-11-03 02:48:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:48:12,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:48:12,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:12,277 INFO L225 Difference]: With dead ends: 796 [2022-11-03 02:48:12,277 INFO L226 Difference]: Without dead ends: 711 [2022-11-03 02:48:12,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:12,279 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:12,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 14 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:48:12,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-11-03 02:48:12,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 679. [2022-11-03 02:48:12,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 673 states have (on average 2.5794947994056465) internal successors, (1736), 678 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:12,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1736 transitions. [2022-11-03 02:48:12,308 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1736 transitions. Word has length 6 [2022-11-03 02:48:12,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:12,308 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 1736 transitions. [2022-11-03 02:48:12,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:12,309 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1736 transitions. [2022-11-03 02:48:12,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:48:12,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:12,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:12,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:48:12,312 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-03 02:48:12,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:12,313 INFO L85 PathProgramCache]: Analyzing trace with hash -900165989, now seen corresponding path program 1 times [2022-11-03 02:48:12,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:12,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592996672] [2022-11-03 02:48:12,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:12,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:12,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:12,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592996672] [2022-11-03 02:48:12,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592996672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:12,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:12,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:48:12,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292803692] [2022-11-03 02:48:12,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:12,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:12,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:12,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:12,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:12,534 INFO L87 Difference]: Start difference. First operand 679 states and 1736 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:12,690 INFO L93 Difference]: Finished difference Result 873 states and 2213 transitions. [2022-11-03 02:48:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:12,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-03 02:48:12,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:12,697 INFO L225 Difference]: With dead ends: 873 [2022-11-03 02:48:12,697 INFO L226 Difference]: Without dead ends: 873 [2022-11-03 02:48:12,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:12,699 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:12,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:48:12,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2022-11-03 02:48:12,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 739. [2022-11-03 02:48:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 733 states have (on average 2.581173260572988) internal successors, (1892), 738 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1892 transitions. [2022-11-03 02:48:12,726 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1892 transitions. Word has length 8 [2022-11-03 02:48:12,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:12,727 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 1892 transitions. [2022-11-03 02:48:12,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1892 transitions. [2022-11-03 02:48:12,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:48:12,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:12,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:12,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:48:12,729 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-03 02:48:12,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:12,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2135341479, now seen corresponding path program 1 times [2022-11-03 02:48:12,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:12,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658389395] [2022-11-03 02:48:12,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:12,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:48:12,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:12,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658389395] [2022-11-03 02:48:12,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658389395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:12,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:12,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:48:12,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170357388] [2022-11-03 02:48:12,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:12,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:12,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:12,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:12,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:12,922 INFO L87 Difference]: Start difference. First operand 739 states and 1892 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:13,071 INFO L93 Difference]: Finished difference Result 901 states and 2285 transitions. [2022-11-03 02:48:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:13,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-03 02:48:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:13,077 INFO L225 Difference]: With dead ends: 901 [2022-11-03 02:48:13,077 INFO L226 Difference]: Without dead ends: 901 [2022-11-03 02:48:13,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:13,078 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:13,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:48:13,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-11-03 02:48:13,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 799. [2022-11-03 02:48:13,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 793 states have (on average 2.622950819672131) internal successors, (2080), 798 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 2080 transitions. [2022-11-03 02:48:13,108 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 2080 transitions. Word has length 9 [2022-11-03 02:48:13,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:13,109 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 2080 transitions. [2022-11-03 02:48:13,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:48:13,109 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 2080 transitions. [2022-11-03 02:48:13,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:48:13,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:13,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:13,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:48:13,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-11-03 02:48:13,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1770841270, now seen corresponding path program 1 times [2022-11-03 02:48:13,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:13,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919188674] [2022-11-03 02:48:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:13,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:48:13,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:48:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:48:13,255 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:48:13,255 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:48:13,257 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-11-03 02:48:13,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-11-03 02:48:13,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-11-03 02:48:13,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-11-03 02:48:13,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-11-03 02:48:13,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-11-03 02:48:13,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-03 02:48:13,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-03 02:48:13,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:48:13,263 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-03 02:48:13,269 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:48:13,269 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:48:13,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:48:13 BasicIcfg [2022-11-03 02:48:13,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:48:13,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:48:13,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:48:13,330 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:48:13,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:05" (3/4) ... [2022-11-03 02:48:13,333 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 02:48:13,409 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:48:13,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:48:13,410 INFO L158 Benchmark]: Toolchain (without parser) took 70544.63ms. Allocated memory was 107.0MB in the beginning and 188.7MB in the end (delta: 81.8MB). Free memory was 64.6MB in the beginning and 103.2MB in the end (delta: -38.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-03 02:48:13,410 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:48:13,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1371.78ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 64.4MB in the beginning and 109.3MB in the end (delta: -44.9MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-03 02:48:13,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.53ms. Allocated memory is still 148.9MB. Free memory was 108.8MB in the beginning and 105.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:48:13,412 INFO L158 Benchmark]: Boogie Preprocessor took 85.59ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 103.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:48:13,412 INFO L158 Benchmark]: RCFGBuilder took 879.59ms. Allocated memory is still 148.9MB. Free memory was 103.0MB in the beginning and 116.3MB in the end (delta: -13.3MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2022-11-03 02:48:13,412 INFO L158 Benchmark]: TraceAbstraction took 68032.31ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 115.6MB in the beginning and 107.4MB in the end (delta: 8.2MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2022-11-03 02:48:13,413 INFO L158 Benchmark]: Witness Printer took 80.18ms. Allocated memory is still 188.7MB. Free memory was 107.4MB in the beginning and 103.2MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:48:13,416 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1371.78ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 64.4MB in the beginning and 109.3MB in the end (delta: -44.9MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.53ms. Allocated memory is still 148.9MB. Free memory was 108.8MB in the beginning and 105.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.59ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 103.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 879.59ms. Allocated memory is still 148.9MB. Free memory was 103.0MB in the beginning and 116.3MB in the end (delta: -13.3MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * TraceAbstraction took 68032.31ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 115.6MB in the beginning and 107.4MB in the end (delta: 8.2MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Witness Printer took 80.18ms. Allocated memory is still 188.7MB. Free memory was 107.4MB in the beginning and 103.2MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.5s, 175 PlacesBefore, 44 PlacesAfterwards, 175 TransitionsBefore, 41 TransitionsAfterwards, 3536 CoEnabledTransitionPairs, 7 FixpointIterations, 94 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 24 ConcurrentYvCompositions, 3 ChoiceCompositions, 188 TotalNumberOfCompositions, 8888 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4182, positive: 3883, positive conditional: 0, positive unconditional: 3883, negative: 299, negative conditional: 0, negative unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2577, positive: 2491, positive conditional: 0, positive unconditional: 2491, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2577, positive: 2485, positive conditional: 0, positive unconditional: 2485, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 92, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46871, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 619, negative conditional: 0, negative unconditional: 619, unknown: 46150, unknown conditional: 0, unknown unconditional: 46150] ], Cache Queries: [ total: 4182, positive: 1392, positive conditional: 0, positive unconditional: 1392, negative: 213, negative conditional: 0, negative unconditional: 213, unknown: 2577, unknown conditional: 0, unknown unconditional: 2577] , Statistics on independence cache: Total cache size (in pairs): 181, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-2, res=0, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=-1, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) [L1750] COND TRUE 0 probe_ret==0 [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; [L1723] 0 data->shared.a = 3 VAL [arg={5:24}, data={5:0}, data={5:0}, status={6:0}, t1={3:0}, t2={4:0}] [L1726] 0 data->shared.b = 3 VAL [arg={5:24}, data={5:0}, data={5:0}, status={6:0}, t1={3:0}, t2={4:0}] [L1689] 2 struct device *dev = (struct device*)arg; [L1690] 2 struct my_data *data; [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1694] 2 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1729] EXPR 0 data->shared.a [L1729] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 185 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 67.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 64.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 444 IncrementalHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 28 mSDtfsCounter, 444 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=799occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 364 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-03 02:48:13,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed1a4d1-3794-41ee-a09d-78f72e797009/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE